Home / 13,798.42-20,691.48-3,935.39

Finding the Fourth Proportional to 13,798.42, 20,691.48 and 3,935.39

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Solution

The fourth proportional to 13,798.42, 20,691.48 and 3,935.39 is: 5,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.42 : 20,691.48 = 3,935.39 : x
  2. Step 2: Convert to fraction form
    13,798.42/20,691.48 = 3,935.39/x
  3. Step 3: Cross multiply
    13,798.42x = 20,691.48 × 3,935.39
  4. Step 4: Simplify right side
    13,798.42x = 81,429,071.17
  5. Step 5: Solve for x
    x = 81,429,071.17/13,798.42
  6. Step 6: Final answer
    x = 5,901.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.